Postdoctoral Fellowship: MPS-Ascend: Transiting brown dwarfs as the key to understanding substellar formation mechanisms

博士后奖学金：MPS-Ascend：凌日褐矮星是理解亚恒星形成机制的关键

• 批准号: 2316566
• 负责人: Theron Carmichael
• 金额: $ 30万
• 依托单位: Carmichael, Theron W
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-07-01 至 2026-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2316566&HistoricalAwards=false
• 关键词: Postdoctoral; Fellowship; MPS; Ascend; Transiting

Theron Carmichael is awarded a Mathematical and Physical Sciences Ascending Postdoctoral Research Fellowship (MPS-Ascend) to conduct a program of research and education at the University of Hawai’i, Manoa. He plans to study the population of transiting brown dwarfs, which are rare objects that serve as the bridge between planets and stars in the Milky Way galaxy. He will serve as a mentor in the Research Experience for Teachers (RET) and the Hawai’i Student/Teacher Astronomy Research (HI STAR) programs at Manoa to improve the participation of students from the Native Hawaiian community and other underrepresented backgrounds in astronomy research.Carmichael will take measurements of the masses, radii, and ages of newly discovered transiting brown dwarfs in order to gain a deeper understanding of their formation mechanisms and evolution. These measurements will be compared against substellar evolution models that aim to predict how brown dwarf masses and radii evolve over time. Through this work, Carmichael will explore the mass range at which brown dwarfs stop forming the way giant planets do and begin to form more like stars. He will additionally explore the effects of stellar irradiation on the radius evolution of transiting brown dwarfs. Carmichael plans to mentor and advise junior researchers using brown dwarf science as a rich learning environment for these young scientists to grow. He will use his past experience in mentorship roles to help these scientists identify, understand, and overcome the systemic barriers they may face as they become full-fledged researchers and future leaders in astronomy.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

塞隆卡迈克尔被授予数学和物理科学上升博士后研究奖学金（MPS-Ascend），在夏威夷大学马诺阿分校进行研究和教育计划。他计划研究凌日褐矮星的数量，这是一种罕见的天体，在银河系中充当行星和恒星之间的桥梁。 他将担任教师研究经验（RET）和夏威夷学生/教师天文学研究（HI星星）计划的导师，以提高夏威夷土著社区和其他代表性不足的背景的学生在天文学研究中的参与。卡迈克尔将测量质量，半径，以及新发现的凌日褐矮星的年龄，以便更深入地了解它们的形成机制和演化。这些测量结果将与亚恒星演化模型进行比较，这些模型旨在预测褐矮星的质量和半径如何随着时间的推移而演变。 通过这项工作，卡迈克尔将探索褐矮星停止形成巨行星的方式，并开始形成更像恒星的质量范围。他还将探索恒星辐射对过境褐矮星半径演变的影响。卡迈克尔计划指导和建议初级研究人员使用褐矮星科学作为一个丰富的学习环境，为这些年轻的科学家成长。他将利用他过去担任导师的经验，帮助这些科学家识别、理解和克服他们在成为成熟的研究人员和未来天文学领导者时可能面临的系统性障碍。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。